Heating device and method

A technology of heating device and single battery cell, which is applied in the direction of secondary battery charging/discharging, electrochemical generator, electrical components, etc., and can solve the problems of low heating efficiency and slow heat production speed

Active Publication Date: 2017-02-01
CONTEMPORARY AMPEREX TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] To heat the battery core through an external heater, it is necessary to heat the heater first, and then indirectly heat the battery core. No matter which method is used, there are problems of slow heat generation and low heating efficiency.

Method used

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  • Heating device and method
  • Heating device and method

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Embodiment approach

[0074] In order to better understand the technical solution, the embodiment of the present invention provides a more specific implementation by taking the heating of the single cell in the electric vehicle as an example in the form of pulse discharge. The embodiments of the present invention that need to be explained are applicable but not limited to the following The implementation mode specifically includes the following steps:

[0075] Step 1. The power of the electric vehicle is turned on, and the single cell heating device is turned on for a pulse discharge step.

[0076] Step 2. The temperature sensor feeds back the temperature information of the single cell to the monitoring unit; the monitoring unit collects the positive and negative voltages of the single cell; the current monitor feeds back the loop current information to the monitoring unit.

[0077] Step 3. The monitoring unit detects whether the temperature of the single cell meets the preset temperature range, wh...

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Abstract

The embodiment of the invention provides a heating method, and relates to the technical field of battery core heating. Battery core heating can be achieved through pulse discharge of an battery core itself. The method is suitable for a heating device. The heating device comprises the monomer battery core, a temperature sensor, a monitoring unit and a discharge controller. The method includes the steps that the temperature sensor collects temperature information of the monomer battery core, the monitoring unit outputs discharge control signals according to the temperature information, and the discharge controller starts discharge operation according to the discharge control signals so as to control the discharge state of the monomer battery core. The technical scheme is suitable for the battery core heating process.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of electric core heating, in particular to a heating device and method. [0003] 【Background technique】 [0004] The dual pressure of energy shortage and environmental pollution has promoted the rapid development of electric vehicles. At present, the power batteries used in electric vehicles are generally lithium-ion batteries. Lithium-ion batteries have the advantages of environmental protection, high power density, long life, and high charge-discharge rate. However, in a low temperature environment, the dynamic performance of the battery of an electric vehicle is poor, the impedance is doubled, the charge and discharge capacity is greatly reduced, and the discharge capacity is weakened. security risks. These seriously compromise the service life, range and safety of electric vehicles. [0005] At present, the existing battery heating technology generally uses an external heater to heat the batte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/615H01M10/625H01M10/637H01M10/657H01M10/44
CPCH01M10/443H01M10/615H01M10/625H01M10/637H01M10/657Y02E60/10
Inventor 郭震强王升威梁成都林永寿
Owner CONTEMPORARY AMPEREX TECH CO
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